Sky-Watcher Skymax 180 180mm f/15 Maksutov-Cassegrain Telescope (OTA Only)

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Your Price: CAD2,231.90

• 180mm Maksutov-Cassegrain • 2700 mm (f/15) • Fully multi-coated • 9x50 straight-through finderscope • 2” 90 degree Star diagonal • 28mm 2” LET eyepiece • Green V-style dovetail plate

Part Number: S11540

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Description

Product Highlights

180mm Aperture Maksutov-Cassegrain OTA
2700mm Focal Length, f/15 Focal Ratio
Limited-Diffraction Optical System
Anti-Reflection Fully Multi-Coated Glass
Internal Primary Mirror Focusing System
28mm Long Eye Relief 2" Eyepiece
2" 90° Star Diagonal
8x50 Straight-Viewing Finderscope
Vixen-Style Dovetail Plate

With the largest aperture in the series, the Sky-Watcher 180mm f/15 Maksutov-Cassegrain Telescope is a powerful astronomical tool that remains manageable and portable. The Maksutov design exchanges the conventional front corrector plate of a Schmidt with a convex meniscus lens, resulting in a smaller secondary mirror that limits obstruction and increases contrast, while eliminating the need for periodic collimation. This modified optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt, but the optical benefits, when coupled with the larger aperture and fully multi-coated optics, make this an ideal scope for making detailed solar, lunar, and planetary observations, while being able to resolve deep-sky objects like stars, clusters, galaxies, and nebulae.

The scope is outfitted with a large 2" visual back. To get users started, Sky-Watcher includes a 28mm long eye relief eyepiece that produces 96x magnification and a 90° star diagonal for viewing with the optical tube assembly (OTA) pointed at or near the celestial zenith. The OTA is offered here without a mount or tripod for users who have a reliable support system or want to use it as part of a dual-OTA setup for star parties or observation/imaging rigs. It is outfitted with a Vixen-style dovetail plate for use with compatible mounts. This OTA's compact form factor belies its observation power and resolution and is ideally suited as a grab-and-go option for quick observation sessions or heading out to remote locations.

Optical Performance

180mm aperture
f/15 focal ratio
2700mm focal length
Front convex meniscus lens corrects spherical and chromatic aberrations as well as comas (off-axis aberrations) across the entire field of view
Smaller secondary mirror versus Schmidt-Cassegrains reduces obstructions and increases contrast
Fully multi-coated optics maximize light transmission to improve brightness, color rendition, sharpness, and contrast
Resolution: 0.64 arcsec
Internal primary mirror focus
2"-diameter visual back accepts larger eyepieces and accessories

Mounting

Requires mount and tripod for proper use
Vixen-style dovetail plate
Weight: 19 pounds including OTA, dovetail plate, finder, diagonal, and eyepiece

Included Accessories

Eyepiece:

2" barrel diameter
Accepts most 2" astronomical filters
28mm eyepiece yields 96x power
Comfortable long eye relief

Diagonal:

2" snout and eyepiece holder
90° angle places head in a comfortable viewing position
Star configuration corrects image horizontally for terrestrial use

Finderscope:

Relatively low 8x magnification provides a wide field of view for easier alignment and faster star-hopping navigation
50mm aperture helps resolve dimmer objects that dot finders cannot

Specifications

Optical Design	Maksutov-Cassegrain
Aperture	180mm
Focal Length	2700mm
Focal Ratio	f/15
Eyepiece Barrel Diameter	2"
Diagonal	90° star 2" snout and eyepiece holder
Finderscope	8 x 50 straight view
Tripod	None
Mount Type	Vixen-style dovetail plate
Power Source	N/A
Optical Tube Dimensions	Not specified by manufacturer
Weight	19.0 lb / 8.6 kg

Packaging Info
Package Weight	22.8 lb
Box Dimensions (LxWxH)	30.0 x 13.0 x 11.0"

In the Box

Sky-Watcher 180mm f/15 Maksutov-Cassegrain Telescope (OTA Only)

90° Star Diagonal

28mm Eyepiece

8x50 Straight View Finderscope

Limited 2-Year Warranty

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Sky-Watcher Skymax 180 180mm f/15 Maksutov-Cassegrain Telescope (OTA Only)

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